California Air Resources Board 2004 Almanac (web)				
Chapter 5	San Francisco Bay Area Benzene Emissions			Table 5-34
San Francisco Bay Area - Benzene				
Emissions Source	tons/year	Percent Air Basin	Percent State	
Stationary Sources	140	6%	1%	
Area-wide Sources	34	1%	0%	
On-Road Mobile	1380	61%	10%	
   Gasoline Vehicles	1330	59%	10%	
   Diesel Vehicles	50	2%	0%	
Other Mobile	692	31%	5%	
Natural Sources	0	0%	0%	
Total	2245	100%	17%	
Total Statewide	13466